<!DOCTYPE html>
<html>
  <!-- Test: if input is valid and not barred from constraint validation,
             it should not be affected by :invalid pseudo-class. -->
  <link rel='stylesheet' type='text/css' href='style.css'>
  <body>
    <input class='notinvalid' type='url' value='http://mozilla.org/'>
  </body>
</html>

